Portion of a knife handle



FIG. 1 is a front elevation view of a portion of a knife handle showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is an enlarged perspective view showing a broken away portion of the design; and,

FIG. 4 is an enlarged front elevation view showing a broken away portion of the design.

The broken lines in the drawings represent environmental subject matter and form no part of the claimed design. 

The ornamental design for a portion of a knife handle, as shown and described. 